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GB0220914D0 - Lidar apparatus and method - Google Patents

Lidar apparatus and method

Info

Publication number
GB0220914D0
GB0220914D0 GBGB0220914.6A GB0220914A GB0220914D0 GB 0220914 D0 GB0220914 D0 GB 0220914D0 GB 0220914 A GB0220914 A GB 0220914A GB 0220914 D0 GB0220914 D0 GB 0220914D0
Authority
GB
United Kingdom
Prior art keywords
directing
component light
local oscillator
extracted
light beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GBGB0220914.6A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qinetiq Ltd
Original Assignee
Qinetiq Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qinetiq Ltd filed Critical Qinetiq Ltd
Priority to GBGB0220914.6A priority Critical patent/GB0220914D0/en
Publication of GB0220914D0 publication Critical patent/GB0220914D0/en
Priority to PCT/GB2003/003882 priority patent/WO2004025324A1/en
Priority to AT03795064T priority patent/ATE487151T1/en
Priority to JP2004535640A priority patent/JP4414885B2/en
Priority to AU2003263327A priority patent/AU2003263327A1/en
Priority to EP03795064A priority patent/EP1537442B1/en
Priority to US10/527,329 priority patent/US7397568B2/en
Priority to DE60334810T priority patent/DE60334810D1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • G01S7/487—Extracting wanted echo signals, e.g. pulse detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/87—Combinations of systems using electromagnetic waves other than radio waves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Telephone Function (AREA)

Abstract

A coherent differential absorption lidar (DIAL) device 2 comprises a transmit portion 4 for directing a combined light beam to a remote target and a receive portion 5 for receiving light returned from the remote target and for coherently mixing the received light with its associated local oscillator beam. The combined beam comprises at least two component light beams of discrete wavelengths. The device further comprises a signal correction means. The signal correction means comprising a means for extracting a portion of each component light beam from the transmit portion, a means for introducing a frequency difference 62 between each extracted component light beam and its associated local oscillator beam and a means for directing the extracted beam into the receive portion. This provides an additional correction signal thereby improving device performance.
GBGB0220914.6A 2002-09-10 2002-09-10 Lidar apparatus and method Ceased GB0220914D0 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GBGB0220914.6A GB0220914D0 (en) 2002-09-10 2002-09-10 Lidar apparatus and method
PCT/GB2003/003882 WO2004025324A1 (en) 2002-09-10 2003-09-08 Coherent differential absorption lidar (dial)
AT03795064T ATE487151T1 (en) 2002-09-10 2003-09-08 COHERENT DIFFERENTIAL ABSORPTION LIDAR (DIAL)
JP2004535640A JP4414885B2 (en) 2002-09-10 2003-09-08 Coherent absorption difference rider (DIAL)
AU2003263327A AU2003263327A1 (en) 2002-09-10 2003-09-08 Coherent differential absorption lidar (dial)
EP03795064A EP1537442B1 (en) 2002-09-10 2003-09-08 Coherent differential absorption lidar (dial)
US10/527,329 US7397568B2 (en) 2002-09-10 2003-09-08 Coherent differential absorption lidar (dial)
DE60334810T DE60334810D1 (en) 2002-09-10 2003-09-08 COHERENT DIFFERENTIAL ABSORPTION LIDAR (DIAL)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0220914.6A GB0220914D0 (en) 2002-09-10 2002-09-10 Lidar apparatus and method

Publications (1)

Publication Number Publication Date
GB0220914D0 true GB0220914D0 (en) 2002-10-23

Family

ID=9943752

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0220914.6A Ceased GB0220914D0 (en) 2002-09-10 2002-09-10 Lidar apparatus and method

Country Status (8)

Country Link
US (1) US7397568B2 (en)
EP (1) EP1537442B1 (en)
JP (1) JP4414885B2 (en)
AT (1) ATE487151T1 (en)
AU (1) AU2003263327A1 (en)
DE (1) DE60334810D1 (en)
GB (1) GB0220914D0 (en)
WO (1) WO2004025324A1 (en)

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0322859D0 (en) * 2003-09-30 2003-10-29 British Telecomm Communication
GB0407386D0 (en) * 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
GB0421747D0 (en) * 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
WO2006035198A1 (en) * 2004-09-30 2006-04-06 British Telecommunications Public Limited Company Identifying or locating waveguides
WO2006064243A1 (en) * 2004-12-17 2006-06-22 British Telecommunications Public Limited Company Assessing a network
EP1708388A1 (en) * 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Communicating information
EP1713301A1 (en) * 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for communicating sound over an optical link
EP1715325B1 (en) * 2005-04-20 2010-06-16 Honeywell Analytics AG Method and apparatus for the detection of gas
EP1729096A1 (en) * 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for determining the position of a disturbance in an optical fibre
US7345744B2 (en) * 2005-06-06 2008-03-18 Raytheon Company Optical delay line to correct phase errors in coherent ladar
GB0515605D0 (en) 2005-07-29 2005-09-07 Qinetiq Ltd Laser measurement device and method
JP5149196B2 (en) * 2005-12-06 2013-02-20 カール ツァイス メディテック アクチエンゲゼルシャフト Sample measurement by interferometry
WO2007096578A1 (en) * 2006-02-24 2007-08-30 British Telecommunications Public Limited Company Sensing a disturbance
EP1987317B1 (en) * 2006-02-24 2013-07-17 BRITISH TELECOMMUNICATIONS public limited company Sensing a disturbance
EP1826924A1 (en) * 2006-02-24 2007-08-29 BRITISH TELECOMMUNICATIONS public limited company Sensing a disturbance
JP4657956B2 (en) * 2006-03-14 2011-03-23 三菱電機株式会社 Differential absorption lidar device
US7592595B1 (en) * 2006-03-28 2009-09-22 Operations Technology Development, Nfp Wide concentration range gas detection
CN101410696B (en) * 2006-04-03 2011-01-05 英国电讯有限公司 Evaluating the position of a disturbance
JP4987360B2 (en) * 2006-06-14 2012-07-25 三菱電機株式会社 Differential absorption lidar device
US8077294B1 (en) 2008-01-17 2011-12-13 Ball Aerospace & Technologies Corp. Optical autocovariance lidar
US8119971B2 (en) 2008-01-17 2012-02-21 Ball Corporation Pulse data recorder in which a value held by a bit of a memory is determined by a state of a switch
US9041915B2 (en) 2008-05-09 2015-05-26 Ball Aerospace & Technologies Corp. Systems and methods of scene and action capture using imaging system incorporating 3D LIDAR
US7961301B2 (en) * 2008-05-09 2011-06-14 Ball Aerospace & Technologies Corp. Flash LADAR system
KR101774202B1 (en) * 2008-09-10 2017-09-01 넥스트나브, 엘엘씨 Network of Terrestrial Beacons and Method for Generating and Transmitting Positioning Signals Using the Network of Terrestrial Beacons
US7929215B1 (en) 2009-02-20 2011-04-19 Ball Aerospace & Technologies Corp. Field widening lens
CN102753986B (en) * 2009-09-11 2015-10-07 阿尔斯通技术有限公司 For the MS master-slave fibre optic current sensor of differential protection scheme
US8306273B1 (en) 2009-12-28 2012-11-06 Ball Aerospace & Technologies Corp. Method and apparatus for LIDAR target identification and pose estimation
US8188418B1 (en) * 2010-02-17 2012-05-29 Lockheed Martin Coherent Technologies, Inc. Switchable hybrid receiver for coherent and direct optical detection
DE102010028967A1 (en) * 2010-04-26 2011-10-27 Balluff Gmbh Optical sensor device
DE102010019134B4 (en) 2010-04-30 2019-08-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. THz measuring system and sensor arrangements and their use
US8558993B2 (en) 2010-05-21 2013-10-15 The National Institute of Standards and Technology, as Presented by the Secretary of Commerce Optical frequency comb-based coherent LIDAR
US8736818B2 (en) 2010-08-16 2014-05-27 Ball Aerospace & Technologies Corp. Electronically steered flash LIDAR
US8744126B1 (en) 2012-03-07 2014-06-03 Ball Aerospace & Technologies Corp. Morphology based hazard detection
JP5855262B2 (en) * 2012-09-24 2016-02-09 三菱電機株式会社 Coherent rider device and laser radar device
EP2730947A1 (en) * 2012-11-12 2014-05-14 Technische Universität Hamburg-Harburg Lidar measuring system and lidar measuring process
US20140241731A1 (en) * 2013-02-28 2014-08-28 Harris Corporation System and method for free space optical communication beam acquisition
RU2567469C2 (en) * 2013-03-20 2015-11-10 Общество с Ограниченной Ответственностью "Научно-Производственное Предприятие"Лазерные системы" Lidar of differential absorption on mobile medium
CN103472458B (en) * 2013-09-16 2015-04-15 中国科学院上海光学精密机械研究所 Three-dimensional video laser radar system based on acousto-optic scanning
CN104035102A (en) * 2014-06-12 2014-09-10 中国科学院上海技术物理研究所 Laser radar system and method for detecting concentrations of CO2 (Carbon Dioxide) in atmosphere
CN104035085A (en) * 2014-06-12 2014-09-10 中国科学院上海技术物理研究所 Self-calibration method for differential absorption laser radar system
US9927356B2 (en) * 2015-03-20 2018-03-27 SMS Sensors Incorporated Systems and methods for detecting gases, airborne compounds, and other particulates
US10458904B2 (en) 2015-09-28 2019-10-29 Ball Aerospace & Technologies Corp. Differential absorption lidar
US12123950B2 (en) 2016-02-15 2024-10-22 Red Creamery, LLC Hybrid LADAR with co-planar scanning and imaging field-of-view
US10436906B2 (en) 2016-12-23 2019-10-08 Waymo Llc Hybrid direct detection and coherent light detection and ranging system
US10274587B2 (en) * 2017-01-20 2019-04-30 Raytheon Bbn Technologies Corp. Covert sensor
CN106769952B (en) * 2017-03-02 2019-09-13 南京红露麟激光雷达科技有限公司 Gas differential absorption lidar based on incoherent light source
US10705407B2 (en) 2017-05-08 2020-07-07 Analog Photonics LLC Speckle reduction in photonic phased arrays
CN107356915A (en) * 2017-09-11 2017-11-17 南京信息工程大学 A kind of scaling method and calibration system of middle infrared differential absorption lidar
KR102093637B1 (en) * 2017-10-20 2020-03-27 전자부품연구원 Lidar device and system comprising the same
US10775485B2 (en) 2017-10-20 2020-09-15 Korea Electronics Technology Institute LIDAR device and system comprising the same
RU2679455C1 (en) * 2017-12-04 2019-02-11 Общество с ограниченной ответственностью "Пергам Рисерч энд Девелопмент" Gases in the atmosphere concentration remote measurement method
US11513224B2 (en) 2018-05-03 2022-11-29 Analog Photonics LLC Multi-static coherent LiDAR
US11525915B2 (en) 2018-05-03 2022-12-13 Analog Photonics LLC Multi-static coherent LiDAR
US11879958B2 (en) 2018-06-06 2024-01-23 Honeywell International Inc. System and method for using an industrial manipulator for atmospheric characterization lidar optics positioning
US10921245B2 (en) 2018-06-08 2021-02-16 Ball Aerospace & Technologies Corp. Method and systems for remote emission detection and rate determination
CN110749872A (en) * 2018-07-23 2020-02-04 中国科学技术大学 Coherent differential absorption laser radar and method for detecting gas concentration
US11300682B2 (en) 2018-10-18 2022-04-12 Bae Systems Information And Electronic Systems Integration Inc. Multi-static and bistatic coherent LIDAR with lasers locked to a reference
US11556000B1 (en) 2019-08-22 2023-01-17 Red Creamery Llc Distally-actuated scanning mirror
CN110553988B (en) * 2019-08-30 2021-08-20 天津大学 NO low-concentration signal extraction method based on superposition state idea
EP4283341A4 (en) * 2021-02-26 2024-03-06 Mitsubishi Electric Corporation Lidar device
CN114184559B (en) * 2021-10-22 2023-08-25 安徽大学 Early indoor fire scene pre-judging and detecting device based on laser open light path
CN115128639B (en) * 2022-09-01 2022-12-30 中国科学技术大学 Differential absorption laser radar capable of adjusting seed optical power in real time
WO2024108407A1 (en) * 2022-11-22 2024-05-30 华为技术有限公司 Optical signal processing device, optical chip, detection device, and terminal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157257A (en) * 1990-06-18 1992-10-20 Lasen, Inc. Mid-infrared light hydrocarbon DIAL LIDAR
US5767519A (en) * 1996-03-01 1998-06-16 The Aerospace Corporation Ambient-normalized differential absorption lidar system and method
DE19613805C1 (en) * 1996-04-06 1997-12-11 Deutsche Forsch Luft Raumfahrt Method and device for remote sensing of trace gases
US6621561B2 (en) * 2000-09-22 2003-09-16 Virginia Tech Intellectual Properties Doppler rotational velocity sensor
GB0228890D0 (en) * 2002-12-11 2003-01-15 Qinetiq Ltd Laser radar apparatus

Also Published As

Publication number Publication date
WO2004025324A1 (en) 2004-03-25
ATE487151T1 (en) 2010-11-15
EP1537442A1 (en) 2005-06-08
US7397568B2 (en) 2008-07-08
US20060011840A1 (en) 2006-01-19
JP4414885B2 (en) 2010-02-10
DE60334810D1 (en) 2010-12-16
EP1537442B1 (en) 2010-11-03
AU2003263327A1 (en) 2004-04-30
JP2005538374A (en) 2005-12-15

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Legal Events

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AT Applications terminated before publication under section 16(1)